Cyclospora and Cyclosporiasis: What You Should Know About Symptoms, Treatment and Prevention

Cyclospora has been making headlines lately, leaving many people wondering: What is it, and what should I know?

Cyclospora is a tiny parasite that can cause an intestinal illness called cyclosporiasis. People become infected by eating food or drinking water contaminated with the parasite. In the United States, outbreaks have most often been linked to fresh produce, including leafy greens, herbs and other fruits and vegetables.

While learning about foodborne illnesses can feel unsettling, knowing the signs and symptoms can help you understand what to watch for and when it may be time to talk with a healthcare provider.

What Are the Symptoms of Cyclosporiasis?

The most common symptom of cyclosporiasis is watery diarrhea, which can be frequent and persistent. Other possible symptoms include:

• Loss of appetite
• Unintentional weight loss
• Stomach cramps
• Bloating and gas
• Nausea
• Fatigue
• Body aches
• Low-grade fever
• Vomiting
• Headache

Symptoms typically begin about a week after exposure, although the timing can vary from person to person.

One thing that makes cyclosporiasis different from many typical stomach bugs is that symptoms can last much longer. Without treatment, the illness may continue for weeks. Some people find that their symptoms improve for a time only to return again later, which can make recovery feel frustrating and unpredictable.

How Does Cyclospora Spread?

Unlike some illnesses that spread easily from person to person, Cyclospora is usually transmitted through contaminated food or water. The parasite needs time in the environment before it becomes infectious, so direct spread between people is uncommon.

Can You Prevent Cyclosporiasis?

Practicing good food safety habits can help lower your risk, although no method can completely guarantee that fresh produce is free of Cyclospora.

Before preparing food, wash your hands thoroughly. Rinse fruits, vegetables and herbs under running water before eating, cutting or cooking them. Remove and discard the outer layer of fruits and vegetables, if possible. Firm produce, such as cucumbers or melons, can be gently scrubbed with a clean produce brush. Also, it is important to keep fresh produce separate from raw meat, poultry and seafood and to stay informed about food recalls and public health alerts.

It is worth noting that while washing produce can help reduce contamination, it does not always completely remove Cyclospora.

How Is Cyclosporiasis Treated?

Cyclosporiasis is diagnosed through stool testing. The standard treatment for cyclosporiasis is the antibiotic combination trimethoprim-sulfamethoxazole (TMP-SMX).

When Should You See a Doctor?

If you are experiencing severe diarrhea that lasts several days, diarrhea that improves and then returns, significant fatigue, unexplained weight loss, confusion or signs of dehydration, contact your healthcare provider.

Be sure to mention any recent travel, possible food exposures or awareness of local outbreaks. Sharing these details can help your provider determine whether additional testing or treatment is needed.

With the right diagnosis and treatment, most people recover from cyclosporiasis. Paying attention to symptoms, staying hydrated and knowing when to seek care can help you get the treatment you need and recover more comfortably.